Imidazol derivatives as Raf kinase inhibitors

Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system

Reexamination Certificate

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C546S255000

Reexamination Certificate

active

10220674

ABSTRACT:
Compounds of formula (I):whereinX is O, CH2, S or NH, or the moiety X—R1is hydrogen;V is CH or N;R1is hydrogen, C1-6alkyl, C3-7cycloalkyl, aryl, arylC1-6alkyl, heterocyclyl, heterocyclylC1-6alkyl, heteroaryl, or heteroarylC1-6alkyl any of which except for hydrogen may be optionally substituted;R2and R3independently represent optionally substituted C1-6alkyl, or R2and R3together with the carbon atom to which they are attached form an optionally substituted C3-7cycloalkyl or C3-7cycloalkenyl ring; or R2and R3together with the carbon atom to which they are attached form an optionally substituted 5 to 7-membered heterocyclyl ring containing up to 3 heteroatoms selected from N, O, S.R4and R5independently represent hydrogen, C1-6alkyl, C3-7cycloalkyl, aryl, arylC1-6alkyl, heteroaryl, heteroarylC1-6alkyl, heterocyclyl, or heterocyclylC1-6alkyl, any of which except for hydrogen may be optionally substituted or R4and R5together with the nitrogen atom to which they are attached form 4- to 8-membered ring;Ar is an aryl or heteroaryl ring either of which may be optionally substituted;one of X1and X2is N and the other is NR6, wherein R6is hydrogen, C1-6alkyl, or arylC1-6alkylor pharmaceutically acceptable salts thereof, their use as inhibitors of Raf kinases, and pharmaceutical compositions containing them.

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